v3.26.3
Fair Value Measurements - Schedule of Investments Measured at Fair Value on Recurring Basis (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, at fair value $ 2,019,693 [1],[2] $ 1,488,856 [3],[4]
Fair Value, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, at fair value 2,042,926 1,576,023
First Lien Debt Investments | Fair Value, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, at fair value 1,985,023 1,472,716
Mezzanine Debt Investments | Fair Value, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, at fair value 1,434  
Equity Investments | Fair Value, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, at fair value 33,236 16,140
Foreign Currency Forward Transactions | Fair Value, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, at fair value (414) 167
Cash Equivalents | Fair Value, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, at fair value 23,647 87,000
Level 1 | Fair Value, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, at fair value 30,971 87,000
Level 1 | First Lien Debt Investments | Fair Value, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, at fair value 0 0
Level 1 | Mezzanine Debt Investments | Fair Value, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, at fair value 0  
Level 1 | Equity Investments | Fair Value, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, at fair value 7,324 0
Level 1 | Foreign Currency Forward Transactions | Fair Value, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, at fair value 0 0
Level 1 | Cash Equivalents | Fair Value, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, at fair value 23,647 87,000
Level 2 | Fair Value, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, at fair value 287,311 326,020
Level 2 | First Lien Debt Investments | Fair Value, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, at fair value 287,725 325,853
Level 2 | Mezzanine Debt Investments | Fair Value, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, at fair value 0  
Level 2 | Equity Investments | Fair Value, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, at fair value 0 0
Level 2 | Foreign Currency Forward Transactions | Fair Value, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, at fair value (414) 167
Level 2 | Cash Equivalents | Fair Value, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, at fair value 0 0
Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, at fair value 1,724,644 [5] 1,163,003 [6]
Level 3 | Fair Value, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, at fair value 1,724,644 1,163,003
Level 3 | First Lien Debt Investments | Fair Value, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, at fair value 1,697,298 1,146,863
Level 3 | Mezzanine Debt Investments | Fair Value, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, at fair value 1,434  
Level 3 | Equity Investments | Fair Value, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, at fair value 25,912 16,140
Level 3 | Foreign Currency Forward Transactions | Fair Value, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, at fair value 0 0
Level 3 | Cash Equivalents | Fair Value, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, at fair value $ 0 $ 0
[1] $ in thousands. Unless otherwise indicated, these investments were valued using unobservable inputs and are considered Level 3 investments. Refer to Note 5 Fair Value Measurements.
[2] Negative fair market values indicate investment had an unfunded loan commitment, and no interest is being earned on the unfunded portion, although the investment may earn unused commitment fees. Unamortized fees are classified as unearned income which reduces cost basis, which may result in a negative cost basis. A negative fair value may result from the unfunded commitment being valued below par.
[3] $ in thousands. Unless otherwise indicated, these investments were valued using unobservable inputs and are considered Level 3 investments. Refer to Note 5 Fair Value Measurements.
[4] Negative fair values indicate investment had an unfunded loan commitment, and no interest is being earned on the unfunded portion, although the investment may earn unused commitment fees. Unamortized fees are classified as unearned income which reduces cost basis, which may result in a negative cost basis. A negative fair value may result from the unfunded commitment being valued below par.
[5] $ expressed in thousands
[6] $ expressed in thousands